[Aaaha oh dear. Arthur pauses, looking at the other boy's face and he can see that fear there in the moment before Gamzee looks down. One eyebrow lifts up, then he chuckles and gives his friend's shoulder a light squeeze before moving away from him and scooting along the seat to lean against the window, one foot on the seat and his forearm resting on his bent knee]

You're looking a bit peaky, there. You're not travel-sick, are you?